Description
ChemicalBook > CAS DataBase List > Styrene Butadiene Rubber

Styrene Butadiene Rubber

Description
Product Name
Styrene Butadiene Rubber
CAS No.
9003-55-8
Chemical Name
Styrene Butadiene Rubber
Synonyms
sbs;SBR;STYRENE-BUTADIENE RUBBER;STYRENE/BUTADIENE COPOLYMER;dienols;ricon100;styrene-butadienepolymer;styrene-1,3-butadienecopolymer;Polymerized Styrene Butadiene Rubber;Styrene-butadiene rubber,oil-extended
CBNumber
CB7476376
Molecular Formula
C36H42X2
Formula Weight
474.72
MOL File
9003-55-8.mol
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Styrene Butadiene Rubber Property

Density 
1.04 g/mL at 25 °C
refractive index 
1.57
solubility 
solvents with solubility parameters between 7.7 and 9.4: soluble
form 
slab/chunk
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
LogP
2.700 (est)
IARC
3 (Vol. 19, Sup 7) 1987
EPA Substance Registry System
Styrene 1,3-butadiene polymer (9003-55-8)
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Safety

WGK Germany 
3
RTECS 
WL6478000
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
430072
Product name
Poly(styrene-co-butadiene)
Purity
butadiene 4 wt. %, melt index 6 g/10 min (200°C/5kg)
Packaging
1kg
Price
$77.7
Updated
2024/03/01
Sigma-Aldrich
Product number
182877
Product name
Polystyrene-block-polybutadiene-block-polystyrene
Purity
styrene 30 wt. %, average Mw ~140,000 by GPC, contains <0.5 wt. % antioxidant
Packaging
250g
Price
$104
Updated
2024/03/01
Sigma-Aldrich
Product number
432490
Product name
Polystyrene-block-polybutadiene-block-polystyrene
Purity
styrene 30 wt. %
Packaging
250g
Price
$64
Updated
2024/03/01
Sigma-Aldrich
Product number
S461830
Product name
STYRENE/BUTADIENE COPOLYMER
Purity
AldrichCPR
Packaging
250mg
Price
$179
Updated
2024/03/01
Sigma-Aldrich
Product number
432490
Product name
Polystyrene-block-polybutadiene-block-polystyrene
Purity
styrene 30 wt. %
Packaging
1kg
Price
$108
Updated
2024/03/01
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Styrene Butadiene Rubber Chemical Properties,Usage,Production

Description

By far the most widely used type of synthetic rubber, its consumption for all applications is four times that of polybutadiene, its nearest competitor, and 1.5 times that of all other elastomers combined. Its manufacture involves copolymerization of three parts butadiene with one part styrene. These materials are suspended in finely divided emulsion form in a large proportion of water, in the presence of a soap or detergent. Also present in small amounts are an initiator or catalyst which is usually a peroxide, and a chain-modifying agent such as dodecyl mercaptan.

Chemical Properties

solid or viscous liquid, depending upon the degree of polymerisation

Uses

Molded or extruded into toys, packaging, appliances, communication cassettes, dinnerware and serviceware.

Uses

Component of hot melt adhesives, sealants, asphalt and oil gels. Modifier for polymers, thermosets and general rubber compounding. Direct molded or extruded auto parts, sporting goods, footware and film.

Definition

ChEBI: Styrene-butadiene copolymer is a polymer.

Production Methods

SBR is prepared mainly by emulsion and solution polymerization in a free-radical process with a mercaptan, such as dodecylmercaptan, which is used as a chain-transfer agent to control molecular weight. In the emulsion process, a soapstabilized water emulsion of styrene and butadiene is polymerized in continuous reactors to form SBR elastomer. “Cold” SBR is produced at a temperature of 5–10°C, and “hot” SBR at about 50°C . Solution SBR is typically made in hydrocarbon solution with an n-butyllithium initiator. The major differences between emulsion and solution styrene–butadiene are in the linearity and molecular-weight distribution of the polymer chains. In nonpolar solvents, the tendency is to produce block copolymer, but random copolymers are formed in polar solvents. SBR can be vulcanized similar to natural rubber but generally requires less sulfur and is more accelerated because of its lowunsaturation.

Hazard

Questionable carcinogen.

Health Hazard

Styrene Butadiene Rubber is prepared in large quantities for tire treads and other, similar uses. The properties, molecular weight, and percentage of monomer can all be controlled in the polymerization process. Hazards of the SBR industry have been identified and related mostly to the monomers and additives. Contact dermatitis and leukemia have been associated with solvent and additive use but not with the actual polymer itself (Checkoway et al., 1984; Kilpikari, 1982). Epidemiological studies in the industry have not revealed a significant increase in disease or causes of death (Matanoski and Schwartz, 1987; Meinhardt et al., 1982). The hazards of the butadiene and styrene monomers were discussed previously.

Safety Profile

An eye irritant. Questionable carcinogen. When heated to decomposition it emits acrid smoke and irritating fumes. See also POLYMERS, INSOLUBLE.

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Styrene Butadiene Rubber Suppliers

Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14443
Advantage
57
BOC Sciences
Tel
1-631-485-4226; 16314854226
Email
info@bocsci.com
Country
United States
ProdList
14059
Advantage
65
HangZhou YuHao Chemical Technology Co., Ltd.
Tel
0571-82693216
Fax
0571-82880190
Email
info@yuhaochemical.com
Country
China
ProdList
3519
Advantage
58
Shanghai Macklin Biochemical Co.,Ltd.
Tel
15221275939 15221275939
Fax
021-50706099
Email
shenlinxing@macklin.cn
Country
China
ProdList
15873
Advantage
55
Hubei Jusheng Technology Co.,Ltd
Tel
027-59599241 18871490274
Fax
027-59599241
Email
1400878000@qq.com
Country
China
ProdList
9972
Advantage
58
Chizhou Kailong Import and Export Trade Co., Ltd.
Tel
Fax
-
Email
xg01_gj@163.com
Country
China
ProdList
9503
Advantage
50
Sigma-Aldrich
Tel
021-61415566 800-8193336
Email
orderCN@merckgroup.com
Country
China
ProdList
51471
Advantage
80
Shanghai Orgchem Co.,Ltd.
Tel
+86-21-5877 1921
Fax
+86-21-5877 1925
Email
info@chemofchina.com
Country
China
ProdList
9661
Advantage
55
Aikon International Limited
Tel
025-66113011 18112977050
Fax
(5)02557626880
Email
cb6@aikonchem.com
Country
China
ProdList
15495
Advantage
58
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400-6387771-6037 18920794737
Email
sales@heowns.com
Country
China
ProdList
20434
Advantage
60
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View Lastest Price from Styrene Butadiene Rubber manufacturers

Henan Fengda Chemical Co., Ltd
Product
Styrene Butadiene Rubber 9003-55-8
Price
US $50.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-22
airuikechemical co., ltd.
Product
pOlystyrene-b-pOlybutadiene-b-pOlystyrene 9003-55-8
Price
US $0.00-0.00/Kg
Min. Order
1Kg
Purity
99.9%
Supply Ability
200tons
Release date
2024-03-22
Shaanxi Dideu Medichem Co. Ltd
Product
Styrene Butadiene Rubber 9003-55-8
Price
US $1.00-1.00/KG
Min. Order
1g
Purity
99%
Supply Ability
50tons
Release date
2020-04-22

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